頁籤選單縮合
題名 | 水稻矮性基因在直播栽培下對萌芽及幼苗生長特性之表現=Performance of Dwarf Genes on Emergence and Seedling Growth Characteristics in Direct-Seeded Rice |
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作者 | 楊嘉凌; 吳詩都; 曾富生; Yang, Jia-ling; Wu, Shu-tu; Thseng, Fu-sheng; |
期刊 | 臺灣省臺中區農業改良場研究彙報 |
出版日期 | 19970600 |
卷期 | 55 1997.06[民86.06] |
頁次 | 頁1-9 |
分類號 | 434.117 |
語文 | chi |
關鍵詞 | 矮性基因; 萌芽特性; 幼苗生長特性; 直播水稻; Dwarf gene; Emergence; Seedling growth characteristic; Direct-seeded rice; |
中文摘要 | 本試驗以水稻Shiokari及其6個矮性近同源系為材料,在不同直播條件下,探討矮 性基因對萌芽及幼苗生長特性的影響, 結果如下:1. 播種於生長箱 10 天後,調查幼苗中 胚軸、鞘葉、不完全葉、及不完全葉節間等長度。顯示除 sd-1 外,矮性基因對幼苗生長均 有影響,唯其程度因性狀及基因之不同而有所差異。 2. 不同播種深度播種 30 天後,調查 萌芽特性及 8 個幼苗性狀結果: 矮性基因對於萌芽率、萌芽勢及平均萌芽日數等特性之影 響程度, 因基因及播種深度之不同而各有差異, sd-1 及 d-30 在萌芽率無明顯作用; 除 d-1 及 d-18k 抑制播種深度 5 cm 時的萌芽勢, 其他基因則在任何深度均無顯著影響; d-30 及 d-345 在平均萌芽日數上均無明顯作用。 至於對幼苗各個器官長度之作用, 除 sd-1 及 d-12 之作用不顯著外, 其他基因之影響程度也因基因及播種深度之不同而有差異 。 |
英文摘要 | To evaluate the performances of dwarf gene on the emergences and seedling growth characteristics in direct-seeded rice, experiments were conducted at Taichung D.A.I.S. in 1995. Rice varieties included "Shiokari" and its near-isogenic lines with dwarf genes were tested in different seeded conditions. The datas of seelding emergence and other related length characters were collected. The performance of different dwarf genes at different seeding depth under different direct seedling treatments was investigated. The results are as follows: 1. The five length characters of seedling at 10 days in dark growth chamber were affected by all tested dwarf genes, except sd-1 gene. However the perfomances were different by each genes. 2. The emergence characters and eight seedling length characters under different sowing depth treatment at 30 days after seeding were measured. The effect of swarf gene on emergence rate, emergence speed and average emergence days were different, depending on each gene. The sd-1 and d-30 have no significant functions; d-1 and d-18k inhibit the emergence speed at 5 cm seeding depth. The other genes have no significant effect; d-30 and d-345 have no significant effect at mean emergence days. The effect of dwarf genes on the performance and degree of seedling characters were different by different genes and seeding depth. In general, the functions of sd-1 and d-12 were not significant. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。